CA938605A - Soft formation insert bits - Google Patents

Soft formation insert bits

Info

Publication number
CA938605A
CA938605A CA071790A CA71790A CA938605A CA 938605 A CA938605 A CA 938605A CA 071790 A CA071790 A CA 071790A CA 71790 A CA71790 A CA 71790A CA 938605 A CA938605 A CA 938605A
Authority
CA
Canada
Prior art keywords
soft formation
insert bits
formation insert
bits
soft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA071790A
Other languages
English (en)
Other versions
CA71790S (en
Inventor
G. Ott Eugene
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Application granted granted Critical
Publication of CA938605A publication Critical patent/CA938605A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/16—Roller bits characterised by tooth form or arrangement
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
CA071790A 1969-01-28 1970-01-09 Soft formation insert bits Expired CA938605A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79451569A 1969-01-28 1969-01-28

Publications (1)

Publication Number Publication Date
CA938605A true CA938605A (en) 1973-12-18

Family

ID=25162862

Family Applications (1)

Application Number Title Priority Date Filing Date
CA071790A Expired CA938605A (en) 1969-01-28 1970-01-09 Soft formation insert bits

Country Status (3)

Country Link
CA (1) CA938605A (cs)
FR (1) FR2029550B1 (cs)
GB (1) GB1269579A (cs)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187922A (en) * 1978-05-12 1980-02-12 Dresser Industries, Inc. Varied pitch rotary rock bit
DE69215746D1 (de) * 1991-05-01 1997-01-23 Smith International Gesteinsbohrmeissel
FR2677699B1 (fr) * 1991-06-11 1997-03-14 Total Petroles Outil de forage a molettes coniques rotatives.
GB2327443B (en) * 1997-06-30 2001-12-19 Smith International Drill bit, cutting insert and method of manufacture
US6241035B1 (en) 1998-12-07 2001-06-05 Smith International, Inc. Superhard material enhanced inserts for earth-boring bits

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2038386A (en) * 1935-03-09 1936-04-21 Hughes Tool Co Cutter for well drills
US2148372A (en) * 1936-03-21 1939-02-21 Hughes Tool Co Offset tricone bit
US2774571A (en) * 1954-07-06 1956-12-18 Hughes Tool Co Cone type well drill
US3134447A (en) * 1962-01-31 1964-05-26 Hughes Tool Co Rolling cone rock bit with wraparound spearpoints
US3388757A (en) * 1967-03-23 1968-06-18 Smith Ind International Inc Hardened inserts for drill bits

Also Published As

Publication number Publication date
FR2029550A1 (cs) 1970-10-23
FR2029550B1 (cs) 1973-12-21
GB1269579A (en) 1972-04-06

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